Find the vertex and the focus of the parabola.x2 = -4y
A. Vertex (0, 0), focus (0, -1)
B. Vertex (0, 0), focus (0, 1)
C. Vertex (0, 0), focus (2, 0)
D. Vertex (0, 0), focus (0, -2)
E. Vertex (0, 0), focus (1, 0)
Answer: A
Mathematics
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Multiply and simplify.
? 
A. x - 3
B. 
C. 
D. 
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Which property or identity justifies the statement?If src="https://sciemce.com/media/4/ppg__tttt0615190958__f1q46g7.jpg" style="vertical-align: -17.0px;" />.
A. Density Property
B. Transitive Property
C. Distributive Identity
D. Multiplication Property
< 
and 
> 0, then 
? 
< 
?
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Tell whether the triangles are similar or not similar.
A. Not similar B. Similar
Mathematics
For the pair of functions, find the indicated sum, difference, product, or quotient.f(x) = x - 2, g(x) = x - 4Find (f + g)(1).
A. 0 B. 8 C. 4 D. -4
Mathematics